Casting to Voice Assistant Device?

I tried searching for this but could not find anything on it. I am wondering if there is a voice assistant option, DIY or not, that allows me to cast to it with my Android phone?

I have a Wyoming Satellite running on a pi zero 2w and I can play music through it with Music Assistant. This setup almost completely replaces my google devices however one feature we miss is the ability to cast to it from our phones.

is such a feature even possible on non-Google hardware?

I am thinking about getting an Esp32-s3-box-3 or going for the drop-in replacement for the mini 2 I have, but I cannot find anything that indicates if I can cast to these.

I suspect I cannot but figured I would check here.